cRR | aRR | 95% CI | |
---|---|---|---|
Adjusted risk ratios are controlled for education and age (age as a continuous variable). | |||
*Not adjustment for education (coefficient did not converge). | |||
†The small number of observations make the regression analysis of limited value. | |||
aRR, adjusted risk ratio; CI, confidence interval; cRR, crude risk ratio. | |||
Non-smoker | 1.20 | *1.20 | 0.70 to 2.03 |
1–9 cigarettes/day | 1.24 | 1.25 | 0.98 to 1.58 |
10–19 cigarettes/day | 1.07 | 1.06 | 0.96 to 1.17 |
20+ cigarettes/day | 1.07 | 1.06 | 0.96 to 1.18 |
†Smoker, amount not reported/former smoker | 1.19 | 1.19 | 0.93 to 1.53 |